Specifications

482
Syntax:
CALL "SOCKET.FN3" .fcFDZERO SOCKFDSET$
Description: This function initializes the specified socket identifier set.
BSD4.4 socket API equivalent: This function is equivalent to the BSD4.4
socket API FD_ZERO macro.
Parameters:
SOCKFDSET$ Socket identifier set
Return value: (None)
Syntax:
CALL "SOCKET.FN3" .fcFDSET SOCKFD%, SOCKFDSET$
Description: This function adds the specified socket identifier to the specified identifier
set.
BSD4.4 socket API equivalent: This function is equivalent to the BSD4.4
socket API FD_SET macro.
Parameters:
SOCKFD% Socket identifier
SOCKFDSET$ Socket identifier set
Return value: (None)
Syntax:
CALL "SOCKET.FN3" .fcFDCLR SOCKFD%, SOCKFDSET$
Description: This function deletes the specified socket identifier from the specified iden-
tifier set.
BSD4.4 socket API equivalent: This function is equivalent to the BSD4.4
socket API FD_CLR macro.
Parameters:
SOCKFD% Socket identifier
SOCKFDSET$ Socket identifier set
Return value: (None)
.fcFDZERO Initialize socket identifier set
.fcFDSET Add socket identifier to socket identifier set
.fcFDCLR Delete socket identifier from socket identifier set